Executive Summary: What is a surge protective device (SPD) and how does it protect your installation? A Surge Protective Device (SPD or DPS in Spanish) acts as a shield for sensitive electronic circuits against atmospheric discharges (lightning) and switching transients on the grid. Under RETIE standard standards, its installation is mandatory to dissipate high-voltage spikes and prevent fires or severe equipment damage.
Imagine a guard at the door of your company capable of stopping invisible, potentially harmful, destructive intruders, who travel at the speed of light and insistently try to enter again and again, their objective is to hit the delicate components of the printed circuits of electronic equipment; The entry highway is the service network that supplies energy to the equipment.
This guardian was named DPS Surge Protective Device, in English SPD Surge Protective Device, it is also known as surge protector, transient suppressor, voltage suppressor, arrester, surge protector, arrester, lightning and surge protection device, surge limiter, lightning and surge protector, surge protector, voltage protector, electrical protector, surge suppressor, surge suppressor, voltage suppressor, electrical suppressor, surge suppressor, TVSS or surge protector.
But while lightning comes then it has to face another more frequent enemy known as SEMP Switching Electromagnetic Puls in Spanish Electromagnetic impulses of Switching or maneuvers also known as Transient Overvoltages (Voltage Surge) also destructive, dangerous, brings little energy but a high level of electrical voltage of several kilovolts which exceeds several times the electrical insulation of electronic equipment, its occurrence in some installations is greater than two hundred times per day, it is produced by the electrical switching of the system, every time an electrical circuit is opened or closed, a dangerous monster of the size of up to 15 kilovolts is born.